A compound medical device, which accurately estimates the disease state of a subject or determines the gestational week or health status of a subject, may include an auscultation unit, receiving bodily sound, a body temperature measurement unit, measuring the body temperature of a subject, a controller unit, connected to the auscultation unit and the body temperature measurement unit and estimating the disease state or determining the gestational week or health status of the subject based on the input received from the auscultation unit and the body temperature measurement unit, and an output unit, outputting the disease state or the gestational week or health status of the subject estimated or determined by the controller unit.